unity3d-net
There are 2 repositories under unity3d-net topic.
OpenArkStudio/ArkClient_Net
A fast,Light weight,easy-using net client written by c#.It is designed to develop real time multiplayer game in Unity3d, you can conveniently develop your game net module.
naitikmundra/Unity-Login-System
Here is the code for making a login/register system in unity